A área de estratégia, por meio da teoria baseada em recursos (RBT), desenvolve estudos que procuram compreender as características, recursos, capacidades e processos que levam algumas empresas, na mesma indústria, a terem um desempenho melhor que seus concorrentes. A RBT atingiu a maturidade teórica exigindo novos rumos para a sua revitalização. Simultaneamente, os estudiosos de marketing internacional afirmam que a teoria sobre a imagem do país de origem (COI) precisa ser revigorada e recomendam que ela seja analisada à luz da literatura de estratégia. É sob essa perspectiva que esta tese apresenta a sua contribuição, desenvolvendo e validando uma escala de importância de COI na perspectiva empresarial. O construto foi desenvolvido com base em uma capacidade específica da empresa: a construção e gestão da marca. Para isso, as bases teóricas sobre RBT, interface entre RBT e marketing, COI e marca foram revisadas e, ancorada nesta literatura, foi possível identificar os processos para incorporar a COI na estratégia da marca, os quais foram utilizados como dimensões da escala. Foram realizados diversos procedimentos psicométricos seguindo as recomendações de diversos psicometristas. O constructo foi definido como a capacidade de gestão da incorporação da COI à marca (BCOI), que reflete a importância conferida pela empresa para usar a COI como um recurso na construção da capacidade de marca. Após a etapa inicial, em que foram gerados e validados os itens com pesquisadores e com gestores, realizou-se um levantamento com 457 executivos. A amostra foi dividida em duas subamostras para aplicação de diferentes técnicas estatísticas. Na subamostra 1 foi realizada uma análise fatorial exploratória que confirmou o modelo inicial da escala delineado junto a pesquisadores e gestores no processo de geração de itens. Esse modelo foi testado na subamostra 2 por meio da análise fatorial confirmatória e da modelagem de equação estrutural. Os resultados indicaram que a BCOI se manifesta por meio de 26 itens organizados em cinco dimensões: elementos textuais e visuais, sentidos, recursos culturais, recursos naturais e empregados / The strategy stream, through resource theory based (RBT), develops studies that seek to understand the characteristics, features, capabilities and processes that lead some companies in the same industry, to have a better performance compered to its competitors. The RBT has reached the theoretical maturity requiring new directions for its revitalization. Simultaneously, international marketing scholars claim that the theory about the country of origin image (COI) needs to be invigorated and recommend it to be examinated in the light of the strategy literature. It is from this perspective that this thesis presents its contribution by developing and validating a scale of importance of COI in business perspective. The construct was developed based on a specific capability of the company: building and manageming the brand (branding). For this, the theoretical basis of RBT, the interface between marketing and RBT, COI and branding were reviewed and anchored in this literature, it was possible to identify the processes to incorporate the COI in the brand strategy, which were used as scale dimensions. various psychometric procedures following the recommendations of several psychometricians were performed. The construct was defined as the branding capability of COI incorporation (BCOI), which reflects the importance given by the company to use the COI as a resource in brand building capability. After the initial stage, in which items were generated and evaluated with researchers and managers, a survey with 457 executives was held. The sample was divided into two subsamples for application of different statistical techniques. An exploratory factor analysis was performed with subsample 1. The EFA produced an initial scale model that was tested in subsample 2 through confirmatory factor analysis and structural equation modeling. The results indicated that the BCOI iis manifested through 26 items organized into five dimensions: textual and visual elements, senses, cultural resources, natural resources and employees.

Cette thèse en sciences de gestion a pour objet de prendre la mesure du rôle du système d’information dans le déclenchement et la propagation des difficultés que rencontrent les petites et moyennes entreprises du secteur agro-alimentaire en France. Nous étudions le lien entre le désalignement des usages du système d’information et les difficultés que peuvent rencontrer les PME.Le terrain est constitué, d’un côté, par des enquêtes d’entreprises qui permettent de construire un indicateur synthétique de performances et, de l’autre côté, par l’enquête COI-TIC de 2006 dont nous obtenons quatre jeux d’indicateurs liés à l’usage du système d’information.À l’aide d’une démarche compréhensive, nous caractérisons ainsi le rôle du système d’information et son désalignement dans les dynamiques de performances. Nous montrons, au cas des PME des IAA, notamment l’importance de la coordination électronique (inter entreprise et entre les parties prenantes) et la place majeure des changements impliquant des projets informatiques. Enfin, les entreprises, quelles que soient leurs performances, rencontrent d’importantes difficultés d’appropriation des usages du système d’information. / The purpose of this thesis in management science is to assess the role of Information Systems in triggering and propagating the kind of problems faced by small and medium-sized enterprises in the food industry in France. The thesis will explore the relationship between misalignments in the uses of Information Systems and the difficulties with which SMEs are often confronted.The field of research is composed, on the one hand, of company surveys, used to elaborate a composite performance indicator, and on the other, the 2006 COI-TIC survey, from which four sets of indicators concerning the uses of Information Systems were extrapolated.Applying a comprehensive approach, the thesis defines the impact of the misalignment of Information Systems on performance dynamics. It also highlights, notably, the importance for SMEs in the food industry of IT coordination between companies and between those companies and their stakeholders, and examines the central role of changes involving IT projects. Lastly, regardless of their performances, companies face major difficulties in appropriating uses of Information Systems.

A área de estratégia, por meio da teoria baseada em recursos (RBT), desenvolve estudos que procuram compreender as características, recursos, capacidades e processos que levam algumas empresas, na mesma indústria, a terem um desempenho melhor que seus concorrentes. A RBT atingiu a maturidade teórica exigindo novos rumos para a sua revitalização. Simultaneamente, os estudiosos de marketing internacional afirmam que a teoria sobre a imagem do país de origem (COI) precisa ser revigorada e recomendam que ela seja analisada à luz da literatura de estratégia. É sob essa perspectiva que esta tese apresenta a sua contribuição, desenvolvendo e validando uma escala de importância de COI na perspectiva empresarial. O construto foi desenvolvido com base em uma capacidade específica da empresa: a construção e gestão da marca. Para isso, as bases teóricas sobre RBT, interface entre RBT e marketing, COI e marca foram revisadas e, ancorada nesta literatura, foi possível identificar os processos para incorporar a COI na estratégia da marca, os quais foram utilizados como dimensões da escala. Foram realizados diversos procedimentos psicométricos seguindo as recomendações de diversos psicometristas. O constructo foi definido como a capacidade de gestão da incorporação da COI à marca (BCOI), que reflete a importância conferida pela empresa para usar a COI como um recurso na construção da capacidade de marca. Após a etapa inicial, em que foram gerados e validados os itens com pesquisadores e com gestores, realizou-se um levantamento com 457 executivos. A amostra foi dividida em duas subamostras para aplicação de diferentes técnicas estatísticas. Na subamostra 1 foi realizada uma análise fatorial exploratória que confirmou o modelo inicial da escala delineado junto a pesquisadores e gestores no processo de geração de itens. Esse modelo foi testado na subamostra 2 por meio da análise fatorial confirmatória e da modelagem de equação estrutural. Os resultados indicaram que a BCOI se manifesta por meio de 26 itens organizados em cinco dimensões: elementos textuais e visuais, sentidos, recursos culturais, recursos naturais e empregados / The strategy stream, through resource theory based (RBT), develops studies that seek to understand the characteristics, features, capabilities and processes that lead some companies in the same industry, to have a better performance compered to its competitors. The RBT has reached the theoretical maturity requiring new directions for its revitalization. Simultaneously, international marketing scholars claim that the theory about the country of origin image (COI) needs to be invigorated and recommend it to be examinated in the light of the strategy literature. It is from this perspective that this thesis presents its contribution by developing and validating a scale of importance of COI in business perspective. The construct was developed based on a specific capability of the company: building and manageming the brand (branding). For this, the theoretical basis of RBT, the interface between marketing and RBT, COI and branding were reviewed and anchored in this literature, it was possible to identify the processes to incorporate the COI in the brand strategy, which were used as scale dimensions. various psychometric procedures following the recommendations of several psychometricians were performed. The construct was defined as the branding capability of COI incorporation (BCOI), which reflects the importance given by the company to use the COI as a resource in brand building capability. After the initial stage, in which items were generated and evaluated with researchers and managers, a survey with 457 executives was held. The sample was divided into two subsamples for application of different statistical techniques. An exploratory factor analysis was performed with subsample 1. The EFA produced an initial scale model that was tested in subsample 2 through confirmatory factor analysis and structural equation modeling. The results indicated that the BCOI iis manifested through 26 items organized into five dimensions: textual and visual elements, senses, cultural resources, natural resources and employees.

Attrition among students in online courses worldwide is well-documented at the undergraduate, graduate, and post-graduate levels. However, little is yet known about the reason for attrition among in-service teachers in online training. Online education aims to provide access to education for the masses, but with higher attrition rates, it may be viewed as less effective than traditional education. This study explored factors that influenced attrition and persistence among teachers of English as a Foreign Language (EFL) in an online teacher training environment. Tinto's Community of Inquiry framework and Short, Williams, and Christie's Social Presence Model provided the conceptual framework for this qualitative case study to address the research question. Six participants in Latin America from 4 online courses, selected through criterion and convenience sampling, participated in the study. Data sources included online questionnaires, personal narratives, and a focus group interview. Each data set was analyzed using open coding to identify emerging themes, selective coding for purposes of analysis, and finally axial coding to confirm overarching themes. Findings indicate that social, teacher, and cognitive presence are key to engagement in online learning and persistence, while lack of such presences can demotivate and lead to attrition. Thus, it is important to design online training that fosters all 3 types of presence. Results also included recommendations for designing more engaging online teacher training curricula. This study contributes to positive social change by providing online course designers with a deeper understanding of factors which influence attrition and persistence.

A subset of 199 Melissotarsus insularis and 130 Diaspididae specimens were analyzed to 1) determine the species status of M. insularis and 2) to explore the relative intimacy of the relationship between M. insularis and Diaspididae. An analysis of molecular variance and the observed lack of association between clades and distinct habitats on the M. insularis phylogeny suggested that while M. insularis exhibits isolation by distance, it does not apparently diversify by habitat. When cryptic COI pseudogenes were accounted for, the majority of the genetic diversity exhibited by M. insularis was limited to a divergence of 3% or less suggesting that M. insularis represents a single, albeit broadly distributed, species. A cophylogenetic reconstruction of the relationship between M. insularis and Diaspididae yielded 14 “cospeciation” events but was not significant unlike reconstructions of host-parasite relationships. Analyses of reduced datasets suggested that incomplete taxon sampling may significantly affect cophylogenetic reconstruction results. / National Science Foundation (grants No. DEB-0072713, DEB-0344731 to BLF and DEB-0842395 to BLF and MAS), a Natural Sciences and Engineering Research Council of Canada Discovery Grant to MAS and a Leaders Opportunity Fund grant from the Canada Foundation for Innovation to MAS

The Oxford English Dictionary defines 'omnifarious' as 'comprising or relating to all sorts or varieties', which quite accurately captures the very nature of octocorals and this thesis. The research reported here, aims to describe undocumented communities of coral reef organisms - the octocorals - which are an emergent dominant component within their threatened ecosystem of the Caribbean. Within the last four decades, coral reefs worldwide have experienced a precipitous plunge in many ecosystem services they provide, and most notably in the Caribbean. The foundation to reef resilience is structured on the ecosystem's ability to repair and restructure itself in the face of environmental shifts. These intricately complex strategies of resilience depend on repair mechanisms provided by a source of biodiversity, much of which remains poorly understood. This work explores many facets of the functioning within this potential future coral reef ecosystem. These reports are one of the most significant contributions to documenting and describing octocoral biodiversity (e.g. species, genetic, and community diversity) of the wider ecoregion of the Mesoamerican Barrier Reef System within the last three decades.

Culicoides (Diptera: Ceratopogonidae) are small (<3mm) blood feeding flies. These flies are biological vectors of viruses, protozoa and filarial nematodes affecting birds, humans, and other animals. Among the viruses transmitted those causing bluetongue (BT), African horse sickness (AHS) and epizootic haemorrhagic disease (EHD) are of major veterinary significance. Culicoides (Avaritia) imicola Kieffer, a proven vector of both AHS and BT viruses, is the most abundant and wide spread livestock-associated Culicoides species in South Africa. Field isolations of virus and oral susceptibility studies, however, indicated that a second Avaritia species, C. bolitinos Meiswinkel may be a potential vector of both BT virus (BTV) and AHS virus (AHSV). Differences in oral susceptibility, which are under genetic control, of populations from different geographical areas to viruses may be an indication of genetic differences between these populations, which may be the result of limited contact between these populations. A good knowledge of the distribution, spread and genetic structure of the insect vector is essential in understanding AHS or BT disease epidemiology. In the present study, an effort was made to gather field specimens of both C. imicola and C. bolitinos from different areas within their natural distribution in South Africa. The aim was to partially sequence two mitochondrial genes from these specimens and to analyse the sequence data making use of phylogenetic trees to clarify the genetic relationships between individuals or groups collected from geographically distinct sites. The two species were collected from four geographically separated areas in South Africa viz. Gauteng Province, Eastern Cape Province, Western Cape Province as well as the Free State Province. DNA was extracted from a total of 120 individual midges of the two Culicoides species using DNA extraction kits. Extracted DNA was analysed using PCR, sequencing as well as phylogenetic methods. A total of 117 mitochondrial DNA COI and 104 mitochondrial 16S ribosomal RNA Culidoides</i. sequences were analysed. DNA sequence polymorphism and phylogenetic relationships of various groups of C. imicola and C. bolitinos midges were determined. The results of the phylogenetic analysis of Culicoides populations using mitochondrial COI gene fragment showed that, at least one subpopulation of C. imicola and two distinct genotypes of C. bolitinos species do exist in South Africa, and further analysis is necessary. This study showed that COI has the potential to separate Culicoides midges based on their geography / Dissertation (MSc)--University of Pretoria, 2010. / Veterinary Tropical Diseases / unrestricted

<p>Social presence positively influences the motivation, satisfaction, retention, and learning outcomes of online students. Although it is crucial for successful online learning experiences, little work has thoroughly examined the evolution of social presence over time and the influence of social presence on peer interaction. In other words, if social presence can be learned by interacting with others. This three-article dissertation study elucidates this gap by answering the overarching question: How does online students' social presence evolve over time to shape their online learning behaviors? Using stochastic-actor oriented models to reflect the dependence among learners in online collaborative learning communities, this dissertation investigated how learners' social presence evolved in learner-learner interaction resulting in two empirical studies and one conceptual framework. The first study explored social presence through clickstream interaction (e.g., number of replies received/sent in an online discussion) of 382 learners enrolled in a Massive Open Online Course. Three key findings from the study were: 1) dropout rates could be lowered if social presence affordances are used purposefully; 2) adding social media characteristics to online discussion boards, for example, "like" buttons, inhibits conversational behavior, and eventually, decreases achievement of learning outcomes; and 3) the "rich-get-richer" effect also applies to social presence, reinforcing highly active students' behavior and risking inactive online students to experience isolation. The second study used peer-nomination data (i.e., asking students who they interact with) and a scale to investigate the spread of social presence perceptions in online networks of students over three consecutive courses (n = 197). Although there was no evidence of social influence, online learners who nominated more peers are more likely to report higher social presence perceptions over time. Students were not more likely to share with those who showed similar levels of social presence. The "rich-get-richer effect" was observed in the incoming nominations of learners. The third study is a conceptual framework that integrates network theory and the online learning literature into a new perspective to analyze learners' online behaviors and interactions under the light of social presence theory. The proposed framework includes four main steps: 1) interaction, 2) social presence alignment, 3) unit of analysis definition, and 3) network statistics and inferential analysis selection. The findings of this dissertation improve educational practice by identifying behaviors that harm online social presence and providing specific actions for online instructors and instructional designers to promote social presence in online learning.  </p>

Storskaliga, öppna, internetbaserade kurser (MOOCar) introducerades år 2008 av George Siemens och Stephen Downes och deras popularitet har ökat ända sedan dess. Förespråkare av MOOCar påstår att de har en potential att möjliggöra livslångt lärande för människor från hela världen. Sedan de första kurserna har två olika former av MOOCar utvecklats, cMOOCar som har utvecklats utifrån lärandeteorin konnektivismen och xMOOCar som är relativt lika vanliga internetbaserade kurser med den skillnad att antalet kursdeltagare är mer eller mindre obegränsat. År 2016 anslöt sig MOOC initiativet från KungligaTekniska högskolan (KTHx) till edX, en undervisningsplattform för xMOOCar. Möjlighet till social interaktion med andra kursdeltagare och lärare erbjuds på edX i form av asynkrona diskussions forum. Forskning om hur den sociala interaktionen ter sig i diskussionsforumen och dess potential för att främja lärande är i dagsläget knapp. Syftet med detta examensarbete är att undersöka den sociala interaktionenskaraktär i två olika xMOOCar, en med självstyrd studietakt och en lärarledd. En ökad förståelse för den sociala interaktionen som för nuvarande äger rum i diskussionsforumen kan vara behjälplig för lärare vid utformningen av undervisningen i xMOOCar. Diskussionsforumen för två kurser av respektive kategori av xMOOC från KTHx om matematik och programmering ingår i denna undersökning. Både en konventionell innehållsanalys och en riktad innehållsanalys baserad på lärandeteorin undersökande gemenskap (CoI) har genomförts för att belysa olika aspekter av den sociala interaktionens karaktär och främjande av lärande i diskussions forumen. Resultatet av undersökningen visar att den sociala interaktionen är opersonlig och att kursdeltagarna initierar interaktionen för att få svar på frågor som huvudsakligen lärare besvarar genom att instruera eller informera. Det bildas ingen gemenskap och det uppvisas lägre nivåer av kognitiv närvaro i diskussionsforumen. För att främja lärande skulle diskussionsforumen istället kunna användas för att engagera de aktiva kursdeltagarna i diskussioner och lärarnas fokus kan förflyttas från att instruera och informera till att etablera en trygg miljö för interaktion. / Massive Open Online Courses (MOOCs) were introduced in 2008 by George Siemens and Stephen Downes and their popularity has increased ever since. Advocates of MOOCs claim that they have the potential to enable lifelong learning for people all over the world. Since the first MOOC, two kinds of MOOCs have developed, cMOOCs that developed from the theory of learning, connectivism, and xMOOCs, which are relatively similar to usual online courses, with the difference that the number of participants is more or less unlimited. In 2016, the MOOC initiative from the Royal Institute of Technology (KTHx) joined edX, a teaching platform for xMOOCs. Opportunity for social interaction with other course participants and teachers is offered on edX in the form of asynchronous discussion forums. Research on the characterof the social interaction in the discussion forums and its potential for promoting learning in xMOOCs is currently limited. The purpose of this master thesis is to investigate the nature of social interaction in two different xMOOCs, one self-paced and one instructor-paced. An increased understanding of the current social interaction that is taking place in the discussion forums can be helpful to teachers in the design of teaching in xMOOCs. In this master thesis two discussion forums from courses of the respective categories of xMOOCs have been studied. Both a conventional content analysis and a directed contentanalysis based on the learning theory Community of Inquiry (CoI) have been conducted to highlight different aspects of the nature of the social interaction and how one may promote learning in the discussion forums. The result of the analysis shows that the social interaction in the discussion forums is impersonal and that the participants initiate the interaction by asking questions that are mainly answered by the teachers, by either instructing or informing. No community is formed and the discussion forums show lower levels of cognitive presence. In order to promote learning, discussion forums may be used to engage the active participants in discussions and it might be benificial if the teachers focused on establishing a safe environment for interaction, as opposed to focusing on instruction and informing.

Large carnivores are among the most challenging species to conserve in our modern and crowded world. Having large spatial requirements and living in low density, they generally require wide and relatively undisturbed areas. In Europe, one of the most anthropized areas of the planet, these needs must be fulfilled in a complex human-dominated landscape. The reintroduced brown bear population living in the Central Alps represents one of the most emblematic examples of a constrained carnivore: despite a steady population increase in the first few years after reintroduction, the population did not substantially expand its range, nor has the Alpine-Dinaric metapopulation been reestablished as envisioned. Although humans have lived in the Alps for centuries, little is known about their impact on the bear population. In other environments humans are known to function as a “super-predator” by changing habitats, competing for space, consuming resources, and harvesting, which alters the ecological niche of animals, especially large carnivores. This dissertation aims to evaluate this phenomenon by assessing the effects of human disturbance on brown bears in the Alps. Anthropogenic disturbance is generally assessed by structural proxies, such as infrastructure and land use, which overlook the impact of human presence. In the first Chapter, we developed the Cumulative Outdoor activity Index (COI) to derive anthropogenic disturbance using crowdsourced data by Strava and validated it with ground truth observations derived from a local camera trapping survey. The intensity of COI provided an effective measure of functional anthropogenic disturbance, and it outperformed all commonly-used proxies of structural disturbance in predicting bear habitat use. When displacement is not an option because of habitat limitations and social mechanisms, bear mobility may clash with human activity. During the moments of lowest mobility, such as resting periods, animals have decreased ability to cope with risky situations, and therefore the selection of suitable resting areas is crucial for the long-term survival of individuals. In the second Chapter, we measured multi-scale response to risk perception (i.e., COI) and resource proximity using bedding sites by GPS radio-collared adult brown bears in the Alps. To map resources across the study area, we developed a GIS-database combining spatial and non-spatial ecological information to map fruit availability. We observed that bears apply a security-food trade-off strategy, avoiding functional anthropogenic disturbance while in proximity to resources. In the third Chapter, we explicitly tested the effect of an abrupt interruption of human mobility during COVID-19 lockdown on bears’ use of ecological corridors. Using bear occurrences reported to local authorities during the recent COVID-19 outbreak, we observed that bears used human-dominated areas more frequently, approached more intensively hot spots for road crossing network, and used areas further from the population core areas more often than previous years, suggesting that connectivity increased with reduced human mobility. In a comparatively human-free system, for the fourth Chapter we used longitudinal morphometric data to analyze drivers of changes in body mass as part of an international collaboration with biologists studying the grizzly bear in the Greater Yellowstone Ecosystem. Specifically, we analyzed changes in lean body mass and fat percentage during years of major ecosystem perturbations. We observed that individual lean body mass during the last two decades was primarily associated with population density, but not body fat percentage, showing density-dependent factors. Our combined findings (Chapters 1-3) showed that brown bears have to adapt their space use, movement, and resource proximity as a result of functional anthropogenic disturbance. In Chapter 4 we explored one effect of unconstrained bear space use on individuals, as manifested through density-dependent effects on body size. In the Alps, however, we found multiple instances of the human-super predator outcompeting bears so as to make density-dependent effects likely less significant as compared to human-caused mortality. These effects could occur in a variety of socio-ecological contexts across Europe, jeopardizing the long-term establishment of both newly reintroduced bear populations, as well as spatially limiting those naturally present in the environment. In response to disturbance, bears have had to reduce their ecological niche in human-dominated landscapes. Allowing humans and bears to coexist in the same landscape is a challenging task, but it is essential for the long-term survival of this newly reintroduced population that are otherwise at risk of extinction.